:root {
    --primary-color: #666767;
    --text-color: #333;
    --bg-color: #f4f4f4;
    --container-bg: #fff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    background-color: var(--container-bg);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    width: 90%;
    text-align: center;
}

header {
    margin-bottom: 2.5rem;
}

.logo {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

main h1 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

main p {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 2rem;
}

footer {
    border-top: 1px solid #eee;
    padding-top: 1.5rem;
    font-size: 0.875rem;
    color: #888;
}

footer a {
    color: #888;
    text-decoration: underline;
}

footer a:hover, a:focus {
    text-decoration: none;
}

@media (max-width: 480px) {
    .container {
        padding: 2rem;
    }
    main h1 {
        font-size: 1.5rem;
    }
}